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 <h2 class="title">安装</h2>
 <p class="para">
  This extension is enabled by default as of PHP 5.3.0. Before this time,
  fileinfo was a PECL extension but is no longer maintained there.
  However, versions prior to 5.3+ may use the
  <a href="http://pecl.php.net/package/fileinfo" class="link external">&raquo;&nbsp;discontinued PECL extension</a>.
 </p>
 <p class="para">
  Windows users must include the bundled <var class="filename">php_fileinfo.dll</var>
  <acronym title="Dynamic Link Library">DLL</acronym> file in <var class="filename">php.ini</var> to enable this extension.
 </p>
 <p class="para">
  The libmagic library is bundled with PHP, but includes PHP specific changes.
  A patch against libmagic named <var class="filename">libmagic.patch</var> is maintained
  and may be found within the PHP fileinfo extensions source.
 </p>
 <p class="para">
  <table class="doctable table">
   <caption><strong>Upgrade history of the bundled libmagic library</strong></caption>
   
    <thead>
     <tr>
      <th>PHP 版本</th>
      <th>Updated libmagic 版本</th>
      <th>Notes</th>
     </tr>

    </thead>

    <tbody class="tbody">
     <tr>
      <td>5.3.2</td>
      <td>5.03</td>
      <td class="empty">&nbsp;</td>
     </tr>

     <tr>
      <td>5.3.0</td>
      <td>5.02</td>
      <td class="empty">&nbsp;</td>
     </tr>

    </tbody>
   
  </table>

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